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Photonic/Plasmonic Structures from Metallic Nanoparticles in a Glass Matrix

Glass containing nanoparticles is a promising material for various photonic applications due to the unique optical properties mainly resulting from the strong surface plasmon resonance (SPR) of the silver nanoparticles. The characteristics of the resonance can be modified by varying size, shape and concentration of the particles. A finite element method (FEM) implemented in the software COMSOL Multiphysics is used to calculate effective permittivities of this composite material. Two-dimensional structures of rods characterized by an effective permittivity have been considered. In contrast to the preparation of photonic crystals in silicon the deviations from the ideal structures are more important for the structures under consideration here, because such structures cannot be manufactured with the same accuracy like the silicon counterparts.